Lady GaGa Reveals "ARTPOP" Album Cover

New Music: Justin Bieber - Heartbreaker

Photos: Rihanna Launches River Island Fashion Collection In London

Fans lined the block outside of the Oxford Street River Island store for a chance to see Rihanna launch her new fashion collection for the company last night (March 4) in London. Once the pop goddess arrived, showing some skin in a sexy black dress from her collection, she took her time signing autographs for the excited crowd that gathered.